/**
 *  Copyright (C) 2008-2013  Telosys project org. ( http://www.telosys.org/ )
 *
 *  Licensed under the GNU LESSER GENERAL PUBLIC LICENSE, Version 3.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *          http://www.gnu.org/licenses/lgpl.html
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.telosys.persistence.dbfeatures.impl;

import org.telosys.persistence.dbfeatures.AbstractDbFeatures;

/**
 * Specific features for Sybase SQL Anywhere
 * 
 * @author Laurent Guerin
 *
 */
public class SybaseSqlAnywhereFeatures extends AbstractDbFeatures {
	
	//-------------------------------------------------------------------------------------
	public SybaseSqlAnywhereFeatures(int versionMajor, int versionMinor) {
		super(versionMajor, versionMinor);
	}

	//-------------------------------------------------------------------------------------
	// SEQUENCES 
	//-------------------------------------------------------------------------------------
	public boolean supportsSequences() {
		// Since version 12
		if ( versionMajor >= 12 ) return true ;
		else return false ;
	}

	public String getSqlForSequenceNextVal(String sequenceName) {
		if ( supportsSequences() ) {
			return "SELECT " + sequenceName + ".NEXTVAL FROM SYS.DUMMY";
		}
		else {
			return null ;
		}
	}

	//-------------------------------------------------------------------------------------
	// SELECT ... FOR UPDATE 
	//-------------------------------------------------------------------------------------
	public String getForUpdateString() {
		return DEFAULT_FOR_UPDATE_STRING ;
	}

	//-------------------------------------------------------------------------------------
	@Override
	public String toString() {
		return getNameWithVersion("Sybase SQL Anywhere");
	}

}
